Question about Frigidaire FAH126N2T Thru-Wall/Window Air Conditioner

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Air conditioner isn't blowing cold! Fan works okay but air isn't cool. Can hear hissing sound that sounds like normal compressor function. Do I need a coolant recharge?

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You will need the condenser coils repaired before you can charge it. These come from the factory sealed and they should not ever need a charge unless you have a leak. The hissing sound is more likely air in the system being pumped by the comressor and it is coming out a hole in the coils.

Posted on May 29, 2011

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When an air conditioner shakes, there is a problem with the mounting brackets. These brackets hold the air conditioner compressor steady as it operates. Normal vibrations and shaking would otherwise occur without these brackets. A loose mounting bracket causes the air conditioner to rock back and forth and creates a clanking sound. As the compressor starts up, this rocking and clanking sound begins, resulting in a very loud and fast vibration and noise. It also occurs when the unit shuts down.

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